19948545

素因数分解:

$3^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1381}}^1$

素因数の和:1502

約数の個数: 32

約数和(自身を含む): 35821440

約数和(自身を除く): 15872895

約数列:

[1, 3, 5, 9, 15, 27, 45, 107, 135, 321, 535, 963, 1381, 1605, 2889, 4143, 4815, 6905, 12429, 14445, 20715, 37287, 62145, 147767, 186435, 443301, 738835, 1329903, 2216505, 3989709, 6649515, 19948545]

約数ペア:

[(1, 19948545), (3, 6649515), (5, 3989709), (9, 2216505), (15, 1329903), (27, 738835), (45, 443301), (107, 186435), (135, 147767), (321, 62145), (535, 37287), (963, 20715), (1381, 14445), (1605, 12429), (2889, 6905), (4143, 4815)]